Knob on display (KoD) devices and related systems, methods, and devices are disclosed. A KoD device includes a touch surface including a conductive material. The touch surface is configured to be positioned in a released position and in a depressed position. The touch surface is configured to be positioned in the depressed position responsive to pressure applied to the touch surface. The KoD device also includes a push electrode pad configured to be positioned in engagement proximity to a touch sensor of a touch screen device in both the released position and the depressed position. The push electrode pad is electrically connected to the conductive material of the touch surface responsive to the depressed position and electrically isolated from the conductive material of the touch surface in the released position.

Knob on display (KoD) devices and related systems, methods, and devices are disclosed. A KoD device includes a touch surface including a conductive material. The touch surface is configured to be positioned in a released position and in a depressed position. The touch surface is configured to be positioned in the depressed position responsive to pressure applied to the touch surface. The KoD device also includes a push electrode pad configured to be positioned in engagement proximity to a touch sensor of a touch screen device in both the released position and the depressed position. The push electrode pad is electrically connected to the conductive material of the touch surface responsive to the depressed position and electrically isolated from the conductive material of the touch surface in the released position.

An ink file output method is provided, which includes: generating M (M is an integer of 1 or more) pieces of stroke data SD on the basis of event data generated as M input devices move, respectively; generating N (N is an integer of 1 or more and M or less) kinds of logical names LN (metadata) identifying the M number of input devices; generating a metadata block associating the M pieces of stroke data SD with the N kinds of logical names LN; and writing the M pieces of stroke data SD and the metadata block to an ink file.

An electronic device is provided. The electronic device includes a display, an electronic pen, a slot in which the electronic pen can be inserted in or detached from, a pen sensing module configured to sense an insertion/detachment of the electronic pen, a pen input module configured to receive an input using the electronic pen, and a processor configured to activate the pen input module while the display maintains an OFF-state when the detachment of the electronic pen is sensed within the OFF-state of the display.

A hand-held controller and a positional reference device for determining the position and orientation of the hand-held controller within a three-dimensional volume relative to the location of the positional reference device. An input/output subsystem in conjunction with processing and memory subsystems can receive a reference image data captured by a beacon sensing device combined with inertial measurement information from inertial measurement units within the hand-held controller. The position and orientation of the hand-held controller can be computed based on the linear distance between a pair of beacons on the positional reference device and the reference image data and the inertial measurement information.

A mouse device includes a middle frame, a switch, a button plate, a slidable element and an elastic element. The middle frame includes an opening part and a first hook. The first hook is located beside the opening part. The switch is fixed at a position under the middle frame. The switch includes a triggering part. The button plate is located over the middle frame. The button plate includes a pressing rod. The pressing rod is penetrated downwardly through the opening part. The pressing rod includes a receiving groove and a first sleeve. The receiving groove is located over the first sleeve. The first sleeve includes a perforation. The slidable element includes a second sleeve and a second hook. The second sleeve is installed within the first sleeve. The second hook is engaged with the perforation. The elastic element is disposed within the second sleeve.

There is provided an optical navigation device including an image sensor and a processing unit. The image sensor outputs successive image frames. The processing unit calculates a contamination level and a motion signal based on filtered image frames, and determines whether to update a fixed pattern noise (FPN) stored in a frame buffer according to a level of FPN subtraction, the calculated contamination level and the calculated motion signal to optimize the update of the fixed pattern noise.

There is provided an optical navigation device including an image sensor and a processing unit. The image sensor outputs successive image frames. The processing unit calculates a contamination level and a motion signal based on filtered image frames, and determines whether to update a fixed pattern noise (FPN) stored in a frame buffer according to a level of FPN subtraction, the calculated contamination level and the calculated motion signal to optimize the update of the fixed pattern noise.

An apparatus and method for a voltage driver circuit where a path between a ground node and an output node includes an inductor and/or another storage element and an energy transfer circuit composed of at least two switching elements (e.g., transistors) and at least two valve elements (e.g. diodes). The energy transfer circuit operates to discharge a capacitive load (e.g. output capacitor) into the storage element and facilitate transition from low to high voltage while increasing efficiency. An additional path to ground may be included via another switching element to prevent crosstalk and hold the output at ground potential.

This application discloses an input device and an electronic device input system. The input device includes a device body, a touchpad (400), and a first key (300); the device body includes a handheld part, the first key (300) and the touchpad (400) are arranged on the device body and located on the same side of the device body, and in a case that the handheld part is in a first state, a curvature of the handheld part is a first curvature; and in a case that the handheld part is in a second state, the curvature of the handheld part is a second curvature, and the first